1970

5.3

1996

5.9

1985

6.2

1977

5.9

1994

6.0

1990

6.8

2015

3.5

1981

6.4

1998

1.0

1967

6.6

1985

3.4

2024

10.0

2025

5.2

1975

4.2

2016

1.0

1989

6.8

1997

7.5

1993

7.1

1979

0.0

2021

9.0